M^2+7=81

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Solution for M^2+7=81 equation: 


Simplifying
M2 + 7 = 81

Reorder the terms:
7 + M2 = 81

Solving
7 + M2 = 81

Solving for variable 'M'.

Move all terms containing M to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + M2 = 81 + -7

Combine like terms: 7 + -7 = 0
0 + M2 = 81 + -7
M2 = 81 + -7

Combine like terms: 81 + -7 = 74
M2 = 74

Simplifying
M2 = 74

Take the square root of each side:
M = {-8.602325267, 8.602325267}

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